2. You know that when the electric field anywhere inside an insulating material exceeds its die- lectric strength, the material breaks down. As a consequence, capacitors have the breakdown voltage not to be exceeded. A spherical capacitor shown in Fig. 2(a) (the inner and outer radii equal to a and b, respectively) is filled with some insulator of dielectric constant k. This capacitor is known to have the breakdown voltage Vo. What would be the breakdown voltage V, of a parallel-plate capacitor shown in Fig. 2(b), where the distance between the plates is equal to d and half of the space is filled with the same insulator? (a) (b) K d/2 K \b d/2

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Chapter1: Units, Trigonometry. And Vectors
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2. You know that when the electric field anywhere inside an insulating material exceeds its die-
lectric strength, the material breaks down. As a consequence, capacitors have the breakdown
voltage not to be exceeded. A spherical capacitor shown in Fig. 2(a) (the inner and outer
radii equal to a and b, respectively) is filled with some insulator of dielectric constant k. This
capacitor is known to have the breakdown voltage Vo. What would be the breakdown voltage
V, of a parallel-plate capacitor shown in Fig. 2(b), where the distance between the plates is
equal to d and half of the space is filled with the same insulator?
(a)
(b)
K
d/2
K
\b
d/2
Transcribed Image Text:2. You know that when the electric field anywhere inside an insulating material exceeds its die- lectric strength, the material breaks down. As a consequence, capacitors have the breakdown voltage not to be exceeded. A spherical capacitor shown in Fig. 2(a) (the inner and outer radii equal to a and b, respectively) is filled with some insulator of dielectric constant k. This capacitor is known to have the breakdown voltage Vo. What would be the breakdown voltage V, of a parallel-plate capacitor shown in Fig. 2(b), where the distance between the plates is equal to d and half of the space is filled with the same insulator? (a) (b) K d/2 K \b d/2
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